J Sun, MD
NPI 1124175005 · Gastroenterology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
J Sun, MD is a Gastroenterology Physician provider in Houston, TX (NPI 1124175005).
Provider details
- NPI number
- 1124175005
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- P0677 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
933 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 342 | $123 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 98 | $91 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 97 | $162 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 93 | $87 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 67 | $123 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 610 | 220 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 238 | 233 |
| Pantoprazole Sodium | 234 | 92 |
| Linaclotidebrand: Linzess | 169 | 45 |
| Esomeprazole Magnesium | 144 | 50 |
| Plecanatidebrand: Trulance | 57 | 17 |
| Azathioprine | 56 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,319 across 109 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-04
- Last updated
- 2023-02-16
- Certified
- 2023-02-16
Frequently asked questions
- What is J Sun's NPI number?
- J Sun's National Provider Identifier (NPI) is 1124175005, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is J Sun's specialty?
- J Sun is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is J Sun located?
- J Sun's practice location on file with NPPES is 929 Gessner Rd Ste 1360, Houston, TX 77024-2469.
- What is J Sun's phone number?
- The practice phone number listed in the NPPES registry for J Sun is (713) 468-2030.
- Does J Sun accept Medicare?
- J Sun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is J Sun's NPI active?
- Yes — J Sun's NPI (1124175005) is active in the NPPES registry as of the last update on 2023-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.